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參數(shù)資料
| 型號(hào)： | LM7131ACMX |
| 廠商： | National Semiconductor |
| 文件頁(yè)數(shù)： | 17/28頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC OP AMP TINY HS SNG SUPP 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 放大器類型： | 電壓反饋 |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 150 V/µs |
| 增益帶寬積： | 70MHz |
| -3db帶寬： | 90MHz |
| 電流 - 輸入偏壓： | 20µA |
| 電壓 - 輸入偏移： | 20µV |
| 電流 - 電源： | 7.5mA |
| 電流 - 輸出 / 通道： | 65mA |
| 電壓 - 電源，單路/雙路(±)： | 2.7 V ~ 12 V，± 2.5 V ~ 6 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOIC |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | *LM7131ACMX |
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OBSOLETE
SNOS737C – SEPTEMBER 1999 – REVISED APRIL 2013
Video Gain of +2
The design of the LM7131 has been optimized for gain of +2 video applications. Typical values for differential
gain and phase are 0.25% differential gain and 0.75 degree differential phase. See Figure 42.
Improving Video Performance
Differential gain and phase performance can be improved by keeping the active video portion of the signal above
300 mV. The sync signal can go below 300 mV without affecting the video quality. If it is possible to AC couple
the signal and shift the output voltage slightly higher, much better video performance is possible. For a +5V
single supply, an output range between 2.0V and 3.0V can have a differential gain of 0.07% and differential
phase of 0.3 degree when driving a 150
Ω load. For a +3V single supply, the output should be between 1.0V and
2.0V.
Cable Driving with +5V Supplies
The LM7131 can easily drive a back-terminated 75
Ω video cable (150Ω load) when powered by a +5V supply.
See Figure 32, Figure 33, and Figure 34. This makes it a good choice for video output for portable equipment,
personal digital devices, and desktop video applications.
The LM7131 can also supply +2.00V to a 50
Ω load to ground, making it useful as driver in 50Ω systems such as
portable test equipment.
Cable Driving with +3V Supplies
The LM7131 can drive 150
Ω to 2.00V when supplied by a 3V supply. This 3V performance means that the
LM7131 is useful in battery powered video applications, such as camcorders, portable video mixers, still video
cameras, and portable scanners.
Figure 44. CCD Amplifier
Audio and High Frequency Signal Processing
The LM7131 is useful for high fidelity audio and signal processing. A typical LM7131 is capable of driving 2V
across 150
Ω (referenced to ground) at less than 0.1% distortion at 4 MHz when powered by a single 5V supply.
24
Copyright 1999–2013, Texas Instruments Incorporated
Product Folder Links: LM7131
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM7131ACN | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:IC-HIGH SPEED OP AMP |
| LM7131BCM | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM7131BCM5 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Tiny High Speed Single Supply Operational Amplifier |
| LM7131BCM5X | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM7131BCMX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Tiny High Speed Single Supply Operational Amplifier |
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